/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineFriendsInterface.h
Get the cached friend entry if found
null ptr if not found
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FOnlineFriend](API\Plugins\OnlineSubsystem\FOnlineFriend) > GetFriend ( int32 LocalUserNum, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & FriendId, const [FString](API\Runtime\Core\Containers\FString) & ListName )